Sheet feeding and gumming apparatus.



W. ROSE.

SHEET FEEDING AND GUMMING APPARATUS. APPLICATION FILED SEPLZII. I9Is.

; 27 Patented J une 4, 1918.

2 SHEETS-SHEET l.

M//LL/FF/w osa /v .l HTTo/P/I/EK'S W. ROSE. SHEET FEI-:DING AND GUMMING APPARATUS.

APPLICATION FILED SE PT.20, i916.

25 M Willi/1111111111111,

l/11 /lIlllllll/Illllll irs WILLIAM ROSE,

0F GAIN-SBOROUGI-I, ENGLAND.

SHEET FEEDING AND GUMMING APPARATUS.

i. d 4Specification of Letters Patent.

Patented June 4, 191s.

Application filed September 20, 1916. Serial No. 121,326.

To all whom z'timay concern.' l Y Be vit known that I, WILLIAM I osn, a subject of thev King of Great Britaln, residing at Albion Works, Gainsborough, in the county of Lincoln, England, have invented new and useful Improvements lin Sheet Feeding and Gumming Apparatus, of which the following is a specification.

This invention has for its obJect to p rovide vimproved apparatus for separating sheets of paper, or the like, from a pile of such sheets, applying adhesivev matter to them, and feeding them to the required place, or machine such as a bag-making machine.

Thetop sheet of the pile of sheets may be raised by any Suitable mechanism such as for example, the mechanism described in the specification of British Letters Patent No. 6,815 A. D. 1915.A When the rear edge of the top sheet has been raised a reciprocating slider, (which may be, for example, operated by a cam and levers from the mam shaft of the machine) is caused to pass under the said top sheet to completelyseparate it from the next lsheet of the pile, shouldit have a tendency to adherethereto throughout any part of its length. The said reciprocating slider is; provided with a device such as a gripper, or a projection, or grippers, or projections, or the like, to engage the separated top. sheet and move it into position tobe engaged by a gripper, or by grippers, or thelike, on ay segment, or segments, or `the equivalent, rotated by any suitable means. An adhesive applying-device, is, or adhesiveapplying devices, are, provided to take u adhesive (which we will refer to as gum from. a roller, or rollers, rotatable in a gum trough and apply the um'tothe sheet as it is carried by the said segment, or segments. After the sheet has had the gum applied thereto it is carried farther by the aforesaidsegment, or segments, beneath `a rol-ler, or rollers, whichldeliver it onto av traveling conveyer, or the like, or iny any other suitable way,'to thebag-making machine, or other required place.

In order to preventv gum being applied to the aforesaid segment, orsegments, should a sheet of'paper not be in position thereon, there may be ay groove in the segment, or in each segment, in such position that the gumming device will not come into contact with the bottom of the said groove when it is not covered by a sheet. Or, with the same object part of the said segment, or of each segment, may be constituted by a portion 0f a movable bar so arranged that after a top sheet has been seized by the gripper, or grippers, on the segment (-or each segment) a finger, or the like, mounted on a spindle carried by the said segment (or each segment) is brought into engagement with the paper, or the like, the said linger,`

or the like, being operated by a roller on an arm carrying the said finger and acting on a stationary cam. The said finger, or arm, also carries a rack engaging another rack fixed on a spindle mounted in the segment, (or each segment). Also fixed to the said s indle is a toggle arm connectedby a link. (idr by links) to the aforesaid bar which is loosely mounted on a spindle also `carried by the segment. `When a sheet is in position on the segment (or segments) the aforel,

said finger, or the like, rests on the sheet and the bar is inits raised position so that it constitutes part of the segment and there is consequently a continuous surface on which the sheet is supported While the gum is applied to it. If a sheet has not been taken up by the segment (or segments) the finger, or the like, makes a further movement and the bar is turned to beneath the plane of the surface of the segment and no gum is applied to the said segment.

The adhesive applying device may be of any suitable kind, such as a roller, or portion of a roller, or it may be a yieldable device adapted to evenly distribute the gum or other adhesive.

. I willdescribe' an arrangementaccording to my inventionl with reference to the ae-v companying drawings in which Figures 1 and 2 are an elevation and a. plan respec- The mechanism for raising the sheets is not illustrated but, as aforesaid, it may be presumed to be like that described in the specification of British Letters Patent No. 6,815 A, D., 1915. When the rear edge of lthe top sheet has been raised a reciprocating slider' 1, (operated from the main shaft 3, of the machine by a cam 2, Which actuates, through an antifriction roller 2, a bellcrank lever 3a, connected by la link 3b, to a sliding carriage 36 attached to the saidv` slider' 1) is passed under the said top sheet move itinto position to be engaged by grippers 6, 6s, on segments 7, 7 a rotated by any suitable means. The adhesive-applying devices 8, 8, take-up gum from rollers 9, 9a, rotatable in a. gum trough 10, and apply the gum to the sheet as it is carried by the said segments y7, 7a. After the sheet has had the gum applied `thereto it is carried farther by the segments 7, 7a, beneath rollers 11, (rshovvn in Fig. 2 bearing upon a third segment v14) which deliver it onto a reciprocating conveyer 12,l to the bag-making machine, orvother required place.

.In order to prevent gum from being appiied to the segments. should a sheet of paper v not be in position thereon, lthere is a groove 13, in each segment, or in some1 of the segments, forexample, as shown with respect to the segments 7 and 14, in such position that they gumming device appert-aining to such segment yWill .not comeintoy contact with the bottom of the said groove 13, When itis notcovered by a sheet. In Figs. 3 and 4., the groove 13, inthe segment 14, has a movable bar 15, therein which is sok arranged that after-a topsheet has been seized by theitop Y grippers G, 6a," av fin-ger 1'6, mounted on :a spindle 17, carried by the segment 7, yis brought -into engagement "with the paper, Aor the like, the said finger 16,

' -v being' operated by a roller 18,- on an arm 19, formed in one With the said finger and acting on the stationary cam 2 0. The said finger `1G, :or'arm 19, also carries a rack 21, engaging :another rack 22, fixed on a spindle -1 23, mounted inthe lsegment 7, '(or each of the segments). Also fixed to -the said spindle'23, is a toggle-arm 24, connected by links y2.5,1to lan arm 26, pivoted, at 27, to the segment 14, and formed in one'with the 'f aforesaid bar 115. When a sheetis in position rof thelsegments 7, 7, 'and 14, the finger 16, :rests on the sheet and the bar 15, is in itsraisedposition so that it constitutes part ofthe segment and `'there is consequently a continuous surface' on which the sheet is 'supported While the gum is applied to it.

If a sheet has not been taken up by either of the segments 7, 7a and 14, the linger 16, makes a further movement and the bar 15, is turned beneath the plane of the surface of the segment 14, and no gum is applied to the said bar. v V

The adhesive applying device may be of any suitable kind, such as a roller, or portion of a roller, as shown at 8, or a bar as shown at 8a, or it may be a yieldable device adapted to evenly distribute the gum; or other ad- The device 8a, for applying the gum to the segment 14, may be adapted to yield should an obstruction come between it and the said segment so as to prevent the liability 'of damage, and this may be effected vby `providing the said device With an arm 28, (see Fig.' 1) pivoted to a spindle l29, carried by an arm 29a, rotatable on a shaft 30a, the said arm 28, being' normally held against an abutment 30,by a spring 31. Any obstruction coming between the device 8a, and the segment "14, would cause the arm 28, to turn on its pivot, against the action of the'spr'ing 30, and so damage will be prevented.

The gripper 6, is mounted on a'spindie 32, carried by the segment 7 and it is caused to turn thereon, so as to open and close at the propertimes, by a stationary `cam 33, With Which an antifriction :roller 35, on an arm 34, formed lin onevvith the said gripper, l

ratus,"the combination of'a reciprocatable slider `to pass under the top sheet'V of a pile of sheets, `means on said sliderfor gripping the lifted sheet and lholding it While it is shifted to position to be seized, independent means forgripping the thus shifted sheet, movable segments carrying the last named gripping 'means and over which segments the sheet lies, means `for applying adhesive tothe .sheet as yit passes over the segments and means for delivering nand conveying lthe gummed sheet to position for subsequent operation thereon.-

2. In sheet feeding'and gumming apparatus, a support `for the sheet, said support beingrecessed at the point kat which adhesive isto be yapplied to the sheet, means for applying adhesive to a portion of the sheet, a piece Which normally forms a continuation of the supporting surface for thesheet, and a' finger resting upon the sheet when the latter is in position and serving to hold said name to this specification in the presence of piece irfi supporting position, together wli)th two subscribing Witnesses. means or movin said iece to osition eneath said surfacge Whenpno sheet) is in posi- WILLIAM ROSE' 5 tion upon it to shift said piece out of the Witnesses: y

path of the adhesive applying device. T. E. MAYNARD-PAGE,

In testimony whereof I have signed my F. W. ROSE.

Copies ot this patent may be obtained for iive cents eaoh, by addressing the Commissioner of I'atents, Washington, D. G. 

